Blisters When You Walk Higher Miles. Walking 10 miles (over 3 hours), even if you are used to walking for six miles, is more of a challenge. You can do it, but most people are likely to develop blisters in new places. Shoes and gear that worked fine for two hours may not be ideal for four hours.
How the Aurora Borealis occur. The Northern Lights are caused by the interaction of the solar wind - a stream of charged particles escaping the Sun - and our planet's magnetic field and atmosphere.
Northern and Southern lights. An Aurora is a natural electric phenomenon that creates bright and colorful light displays in the skies. Auroral light displays are common at higher latitudes, and most auroral activity generally occurs within the Arctic and the Antarctic Circles. Aurora Borealis as seen in Michigan, US. Â©iStockphoto.com/Constance McGuire. Auroras that occur in the Arctic Circle are known as aurora borealis or northern lights, while auroras in the antarctic circle are known as aurora australis or southern lights.